Let s say you want to draw a hexagon that fits in a 24-inch-diameter circle, perhaps for a tabic top. First fix the trammel points - the steel point and the pencil - to a radius of 12 inches. Then scribe the circle. Next, with the points still fixed to the same radius, spike the steel point on the circumference of the circle and travel round striking off arcs. You should finish up with six stcp-offs. Lastly, use a pencil and straightedge to link neighboring intersections.
above: Spike one trammel point down on the center and swing the other point to scribe the circle.
left: Link up neighboring intersections with straight lines to produce a hexagon.
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